How can you beat a narcissist husband who is a bully?

If you mean get the best of, then I would suggest leaving him. A narcissist likes control and they thrive on fear and making you doubt yourself. Take away his control by leaving him. Also start talking about how other men are so successful, make sure that you pick someone that is real. Hearing about someone else's success will eat at him. Narcissists are hermits out of a shell, send that hermit back to his shell by taking back the control.